Kia ora, thanks for your interest in how we calculate an experience's ranking score. It's at the core of Rankers so I'm pleased you're curious.
The ranking score percentage is used to compare and sort experiences in ranking tables. It is not necessarily a direct measurement of the quality of a particular experience as rated by its customers. I've found it a useful tool to allow me to find the best experiences with confidence. But I've also found it important to read the customer reviews before making any final judgements!
We calculate an experience's ranking score using a multi-factor data model instead of a raw data average (mean). This model takes into account several important questions. For instance - is there a trusted body of reviews? What is the age of a review and is the review from a credible source?
Below you'll find details around some of the important factors that went into calculating the ranking score for Skyline Luge Rotorua.
If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz. We don't believe this is perfect or complete so we're always interested in ways we might make improvements.
Skyline Luge Rotorua
Valid Reviews
145 Valid Reviews
The Skyline Luge Rotorua experience has a total of 146 reviews. There are 145 valid reviews that are included when calculating the ranking score and 1 invalid review that are excluded from the calculation. Reviews can be excluded only when a reviewer is not verified or after an investigation by our team determines the reviewer is not genuine.
Below is the distribution of ratings for the 145 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 40 |
|
28% |
| 9/10 | 47 |
|
32% |
| 8/10 | 36 |
|
25% |
| 7/10 | 17 |
|
12% |
| 6/10 | 3 |
|
2% |
| 5/10 | 1 |
|
1% |
| 4/10 | 1 |
|
1% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
86.69% Average
The raw data average (mean) for all the Skyline Luge Rotorua valid reviews is 86.69% and is based on 145 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
Face-to-Face Reviews
121 Face-to-Face Reviews
The Rankers team meets with travellers while they’re in New Zealand and conducts face-to-face surveys. These reviews, in our opinion, are the most trusted in the industry and represent a critical control sample. To our knowledge, we are the only travel review website in the world that has gone to this extent.
More about face-to-face reviews
Within the 145 valid reviews, the experience has 121 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 121 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 31 |
|
26% |
| 9/10 | 38 |
|
31% |
| 8/10 | 34 |
|
28% |
| 7/10 | 13 |
|
11% |
| 6/10 | 3 |
|
2% |
| 5/10 | 1 |
|
1% |
| 4/10 | 1 |
|
1% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
86.12% Average
The raw data average (mean) for all the Skyline Luge Rotorua face-to-face reviews is 86.12% and is based on 121 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
87.10%
Rankers calculates a weighted mean as a base average on which we can improve. Individual review's ratings are given a weight based on several factors. The weight of a review determines the overall impact it'll have on the final weighted average.
Recent reviews have more weight as they are more relevant and reflect the experience as it currently operates. Over time reviews become less relevant and loose their impact on the ranking score.
Low rating reviews carry slightly less weight. This dampens the effect of very low ratings for every experience across the board. This is especially important when the experience has few reviews overall and a single negative rating can grossly mischaracterise an experience. Consistent poor reviews will still result in the experience receiving a comparitively low ranking score.
Credible sources provide reviews that can be trusted. If we have verified a reviewer is genuine via a face-to-face meeting then the review carries additional weight.
| Reviewer | Rating | Age | Relative Weight |
|---|---|---|---|
| Christian Paaske | 7/10 | 3459 days | 96% |
| Natasha Startup | 9/10 | 3491 days | 100% |
| Andy | 9/10 | 3496 days | 99% |
| Toby | 10/10 | 3502 days | 100% |
| Micha Kuster | 10/10 | 3560 days | 89% |
| Tim | 8/10 | 3576 days | 83% |
| Jendrik | 8/10 | 3576 days | 83% |
| Alice Frater | 7/10 | 3583 days | 75% |
| Jade Williams | 10/10 | 3596 days | 82% |
| Cora | 9/10 | 3837 days | 37% |
| Lauren Dinnage | 10/10 | 3845 days | 37% |
| Mike Munzenmaier | 9/10 | 3852 days | 35% |
| Matt Irwin | 8/10 | 3855 days | 33% |
| Annalies Beard | 8/10 | 3855 days | 33% |
| Laura Schafer | 9/10 | 3863 days | 33% |
| D Davey | 10/10 | 3872 days | 32% |
| Kirsten Gehrenbeck | 6/10 | 3874 days | 19% |
| Lucile Souday | 10/10 | 3883 days | 30% |
| Lisa Kalkert | 10/10 | 3884 days | 30% |
| David | 10/10 | 3884 days | 30% |
| Philip Piel | 9/10 | 3884 days | 29% |
| Miro | 6/10 | 3884 days | 17% |
| Chiara | 9/10 | 3884 days | 29% |
| Sabine Bergen | 9/10 | 3887 days | 28% |
| Annika Locker | 10/10 | 3890 days | 29% |
| Jess | 8/10 | 3921 days | 21% |
| Lilli Erni | 9/10 | 4554 days | 31% |
| Franz Birkefeld | 9/10 | 4555 days | 31% |
| Laina Black | 7/10 | 4575 days | 26% |
| Ricky White | 9/10 | 4575 days | 31% |
| Jennifer Garner | 9/10 | 4589 days | 31% |
| Philip Donachie | 10/10 | 4592 days | 32% |
| Klaus Petersen | 7/10 | 4594 days | 26% |
| Matthew Trezise | 10/10 | 4595 days | 32% |
| Lorraine Doyle | 10/10 | 4927 days | 32% |
| Lisa Blake | 9/10 | 5047 days | 31% |
| Jenben | 10/10 | 5061 days | 32% |
| David | 7/10 | 5061 days | 26% |
| Nikita Sue | 8/10 | 5328 days | 31% |
| Darren Ronchetti | 10/10 | 5331 days | 32% |
| Asha | 9/10 | 5366 days | 31% |
| Helen & Laurence | 9/10 | 5404 days | 31% |
| kirribilliangel | 10/10 | 5488 days | 32% |
| Dave van Bergen | 9/10 | 5636 days | 31% |
| Guult Ryan | 10/10 | 5658 days | 32% |
| Claire Colquhoun | 8/10 | 5659 days | 31% |
| Andy Johnson | 10/10 | 5663 days | 32% |
| Leanne Shepherd | 8/10 | 5664 days | 31% |
| Chris White | 10/10 | 5679 days | 32% |
| Jane & Regis | 7/10 | 5688 days | 26% |
| Invictus | 8/10 | 5853 days | 31% |
| craigy | 7/10 | 5884 days | 26% |
| Rob | 8/10 | 5954 days | 31% |
| David | 7/10 | 5970 days | 26% |
| Alzbeta Czech | 10/10 | 6051 days | 32% |
| Becky | 8/10 | 6058 days | 31% |
| Amer | 9/10 | 6062 days | 31% |
| Greg Gerritz | 8/10 | 6064 days | 31% |
| Chance McGuire | 10/10 | 6065 days | 32% |
| Hailey & Fin | 8/10 | 6077 days | 31% |
| pedawrds | 10/10 | 6116 days | 32% |
| thomash | 10/10 | 6121 days | 32% |
| asiacritics | 7/10 | 6127 days | 26% |
| Bue Verrept | 8/10 | 6134 days | 31% |
| canadianislandgirl | 7/10 | 6157 days | 26% |
| Ash Sturm | 9/10 | 6157 days | 31% |
| wileyman | 9/10 | 6188 days | 31% |
| clairet | 9/10 | 6236 days | 31% |
| ToryL | 9/10 | 6249 days | 31% |
| muriellef | 7/10 | 6253 days | 26% |
| katesh | 10/10 | 6326 days | 32% |
| caroldarren | 10/10 | 6371 days | 32% |
| Jake1 | 9/10 | 6373 days | 31% |
| HanT | 8/10 | 6380 days | 31% |
| Yvanna | 8/10 | 6390 days | 31% |
| EmmaL | 8/10 | 6404 days | 31% |
| AnthonyB1 | 8/10 | 6405 days | 31% |
| kiwibrit86 | 9/10 | 6414 days | 31% |
| Matt | 10/10 | 6420 days | 32% |
| SuenSwitzerland | 9/10 | 6430 days | 31% |
| Carolyn | 9/10 | 6433 days | 31% |
| Marcus | 8/10 | 6433 days | 31% |
| Kirsty | 10/10 | 6434 days | 32% |
| Fam | 9/10 | 6439 days | 31% |
| Hayley | 8/10 | 6445 days | 31% |
| Debbie Mossman | 9/10 | 6445 days | 31% |
| Alan | 8/10 | 6449 days | 31% |
| Claire | 10/10 | 6456 days | 32% |
| Spyfox | 10/10 | 6477 days | 32% |
| Sonja | 9/10 | 6484 days | 31% |
| Tim | 8/10 | 6491 days | 31% |
| Lorri S | 8/10 | 6495 days | 31% |
| lming60 | 10/10 | 6496 days | 32% |
| melissa | 10/10 | 6496 days | 32% |
| Vincent | 9/10 | 6501 days | 31% |
| Hanna | 5/10 | 6516 days | 10% |
| Henry | 8/10 | 6538 days | 31% |
| Laura | 9/10 | 6554 days | 31% |
| Dave | 9/10 | 6561 days | 31% |
| Anna | 8/10 | 6568 days | 31% |
| S D | 9/10 | 6584 days | 31% |
| Alex Paice | 9/10 | 6595 days | 31% |
| Nikki Gray | 9/10 | 6621 days | 31% |
| Kellie Teichmann | 10/10 | 6671 days | 32% |
| L1z4rd | 9/10 | 6690 days | 31% |
| Allie61 | 10/10 | 6736 days | 32% |
| Adam Richards | 9/10 | 6751 days | 31% |
| Nick | 9/10 | 6757 days | 31% |
| Andria Davis | 9/10 | 6764 days | 31% |
| Georgina Mulligan | 9/10 | 6764 days | 31% |
| catzmagic | 9/10 | 6764 days | 31% |
| Emily Houston | 7/10 | 6768 days | 26% |
| Nancy Dol | 8/10 | 6768 days | 31% |
| John Woodrow | 9/10 | 6772 days | 31% |
| Zara | 10/10 | 6780 days | 32% |
| Ed | 6/10 | 6780 days | 19% |
| Elle | 10/10 | 6780 days | 32% |
| Issy | 7/10 | 6780 days | 26% |
| Katharina | 10/10 | 6783 days | 32% |
| Juliet | 9/10 | 6784 days | 31% |
| paulonline | 10/10 | 6786 days | 32% |
| Marc Hertogs | 7/10 | 6787 days | 26% |
| Ash McNeil | 10/10 | 6787 days | 32% |
| Warren | 8/10 | 6811 days | 31% |
| Klaus | 9/10 | 6819 days | 31% |
| Ann Westmacott | 9/10 | 6845 days | 31% |
| Neil Cooke | 8/10 | 6853 days | 31% |
| Archie Murdoch | 8/10 | 6860 days | 31% |
| Orla | 8/10 | 6861 days | 31% |
| Andy Chapman | 8/10 | 6973 days | 31% |
| JanKovar | 7/10 | 7089 days | 26% |
| Magnus | 8/10 | 7101 days | 31% |
| Lorraine | 8/10 | 7107 days | 31% |
| Dan | 9/10 | 7112 days | 31% |
| Sarah | 8/10 | 7112 days | 31% |
| Richhouse | 8/10 | 7117 days | 31% |
| Emma Gareth | 9/10 | 7123 days | 31% |
| Karen Nellist | 10/10 | 7126 days | 32% |
| beesom | 9/10 | 7137 days | 31% |
| Janne | 7/10 | 7141 days | 26% |
| Frauke | 4/10 | 7143 days | 0% |
| Dave | 10/10 | 7148 days | 32% |
| RosalindBoyes | 7/10 | 7148 days | 26% |
| Hanna | 8/10 | 7149 days | 31% |
| LisaAllen | 10/10 | 7162 days | 32% |
Adjustments
Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.
Sample Size Adjustment
No Adjustment
A reasonable number of reviews are necessary in order for the average to be credible and for an experience to take a prime position within the ranking tables. As such, experiences with only a few reviews have a moderated score. This does not mean that the experience or the reviews can't be trusted. The Skyline Luge Rotorua experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-2.81% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 84 days. However the Skyline Luge Rotorua experience does not meet the criteria for any adjustment.
In addition, an experience's ranking score may be adjusted for each day there is no new ranking. After 1 day the adjustment comes into effect. The maximum number of days that can be adjusted for is 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.
The Skyline Luge Rotorua experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -2.76% |
| 198 | -2.78% |
| 199 | -2.79% |
| 200 | -2.81% |
| 201 | -2.82% |
| 202 | -2.83% |
| 203 | -2.85% |
| … | … |
Balancing Adjustment
1.96% Adjustment
Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.
You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.
We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.
Final Ranking Score
86%
The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.